A Guacamole Keeper, Peas Not Included

Whether or not you’re waiting for the Super Bowl to tackle your next batch of guacamole, there’s a new gadget that will improve the results. The Guac-Lock is a bowl that effectively eliminates exposure to air, preventing the oxidation that discolors the avocados. With my test batch, the color stayed true for two days and was far superior to that of guacamole sealed with a sheet of plastic wrap placed on the surface. The bowl was invented by a couple of entrepreneurial home cooks, and though it’s a little complicated to use, it’s worth the effort. It comes with a recipe that’s simple but good: Casabella Guac-Lock, $19.95, thegrommet.com.

A version of this article appears in print on , on Page D3 of the New York edition with the headline: To Preserve: In Making Guacamole, It’s Easy to Stay Green. Order Reprints | Today’s Paper | Subscribe